1. Neuroimmunology and Multiple Sclerosis Research Section; Department of Neurology; University Hospital Zurich; Zurich
2. Department of Neurology; University Hospital Zurich; Zurich
3. Institute of Neuropathology; University Hospital Zurich; Zurich
4. Department of Neurosurgery; University Hospital Zurich; Zurich
5. Private Neurology Clinic; Winterthur Switzerland